diff --git a/client/app.go b/client/app.go
index 2c0b1a4..fc54109 100644
--- a/client/app.go
+++ b/client/app.go
@@ -314,8 +314,6 @@ func (a *App) startLocalServer() {
 			a.expectingLogin = false
 			a.mu.Unlock()
 
-			blocker.Instance.Start()
-
 			// Kiểm tra điều kiện app được phép và giờ học trước khi tải giao diện
 			go a.refreshStudentData()
 
@@ -413,7 +411,6 @@ func (a *App) loadSession() {
 		if err := json.Unmarshal(data, &s); err == nil {
 			a.student = &s
 			log.Printf("[APP] Loaded local session: %s (%s)", s.FullName, s.StudentCode)
-			blocker.Instance.Start()
 
 			go a.refreshStudentData()
 			go a.fetchWifiPolicy()
diff --git a/management/src/components/ClassesTab.tsx b/management/src/components/ClassesTab.tsx
index b0383b9..54321f1 100644
--- a/management/src/components/ClassesTab.tsx
+++ b/management/src/components/ClassesTab.tsx
@@ -10,7 +10,7 @@ export const ClassesTab: React.FC = () => {
   const [pageSize] = useState(15);
   const [search, setSearch] = useState('');
   const [systemFilter, setSystemFilter] = useState<number | undefined>(undefined);
-  const [studyingOnly, setStudyingOnly] = useState(true);
+  const [studyingOnly, setStudyingOnly] = useState(false);
   const [loading, setLoading] = useState(true);
   // Sync state
   const [syncStatus, setSyncStatus] = useState<SyncStatus | null>(null);